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Inessa [10]
3 years ago
9

Find the value of the expression m + m + 9 for m = 4, n = 3, and r= 1.

Mathematics
2 answers:
solong [7]3 years ago
8 0
17 is the correct answer
Artist 52 [7]3 years ago
5 0

Answer:

17

Step-by-step explanation:

both m's substitute for 4

4+4+9

8+9

17

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7.9 times 10 to the 8th power plus 1.68 times ten to the sixth power in scientific notation
nexus9112 [7]
7.9168 x 10^8
790000000 + 1680000 = 791680000
5 0
3 years ago
You drink six-eighths of a quart of milk. Your friend pours a quart of milk into four 8 fluid ounce glasses and drinks three of
tensa zangetsu [6.8K]

Answer:

they drank the same

Step-by-step explanation:

5 0
3 years ago
During summer, when the snow melts, the water level of the Yukon River increases. If the water level of the river increased by 7
kondaur [170]

Answer:

13 centimeters per day.

Step-by-step explanation:

We have been given that during summer, the water level of the river increased by 78 centimeters in 6 days. We are asked to find the water level increase rate in centimeters per day.

To find the water level increase rate per day, we will divide total increase by total days as:

\text{Water level increase rate per day}=\frac{78\text{ cm}}{6\text{ days}}

\text{Water level increase rate per day}=\frac{13\text{ cm}}{\text{ day}}

Therefore, the water level increase rate is 13 centimeters per day.

5 0
3 years ago
Expand and simplify (2x+5y) (x-3y)
Dmitry [639]
Should be simple:

Let's take this one at a time.

2x(x-3y)

You'd get:
2x^2-3xy
for the first one.

2nd one:
5y(x-3y)
you'd get:
+5xy-3y^2

Put them both together:
2x^2-3xy+5xy-3y^2

Combine like terms.

Your Answer:
2x^2+2xy-3y^2

3 0
3 years ago
Solve the equation<br> -18 + 24 = -2(x+6)
anzhelika [568]

Answer:

x = -9

Step-by-step explanation:

-18+24 = -2(x+6) Distribute and simplify

6 = -2x-12 Add 12 to both sides

18 = -2x Divide by -2 on both sides

-9 = x Here's your answer

Hope this helps! :D

3 0
2 years ago
Read 2 more answers
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